elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanSmacFlowEventListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.netvirt.elan.internal;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11 import static org.opendaylight.genius.infra.Datastore.OPERATIONAL;
  12
  13 import com.google.common.base.Optional;
  14 import com.google.common.util.concurrent.FutureCallback;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import java.math.BigInteger;
  18 import java.util.ArrayList;
  19 import java.util.List;
  20 import java.util.Locale;
  21 import javax.inject.Inject;
  22 import javax.inject.Singleton;
  23 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  26 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  27 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  28 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  29 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  30 import org.opendaylight.genius.mdsalutil.NwConstants;
  31 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  32 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
  33 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  34 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeExperimenterErrorNotification;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SwitchFlowRemoved;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  46 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  47 import org.slf4j.Logger;
  48 import org.slf4j.LoggerFactory;
  49
  50 @Singleton
  51 public class ElanSmacFlowEventListener implements SalFlowListener {
  52
  53     private static final Logger LOG = LoggerFactory.getLogger(ElanSmacFlowEventListener.class);
  54
  55     private final DataBroker broker;
  56     private final ManagedNewTransactionRunner txRunner;
  57     private final IInterfaceManager interfaceManager;
  58     private final ElanUtils elanUtils;
  59     private final JobCoordinator jobCoordinator;
  60     private final ElanInstanceCache elanInstanceCache;
  61
  62     @Inject
  63     public ElanSmacFlowEventListener(DataBroker broker, IInterfaceManager interfaceManager, ElanUtils elanUtils,
  64             JobCoordinator jobCoordinator, ElanInstanceCache elanInstanceCache) {
  65         this.broker = broker;
  66         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  67         this.interfaceManager = interfaceManager;
  68         this.elanUtils = elanUtils;
  69         this.jobCoordinator = jobCoordinator;
  70         this.elanInstanceCache = elanInstanceCache;
  71     }
  72
  73     @Override
  74     public void onFlowAdded(FlowAdded arg0) {
  75         // TODO Auto-generated method stub
  76
  77     }
  78
  79     @Override
  80     public void onFlowRemoved(FlowRemoved flowRemoved) {
  81         short tableId = flowRemoved.getTableId();
  82         if (tableId == NwConstants.ELAN_SMAC_TABLE) {
  83             BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
  84             long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
  85             ElanTagName elanTagInfo = elanUtils.getElanInfoByElanTag(elanTag);
  86             if (elanTagInfo == null) {
  87                 return;
  88             }
  89             final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch()
  90                     .getEthernetSource().getAddress().getValue().toUpperCase(Locale.getDefault());
  91             int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
  92             if (portTag == 0) {
  93                 LOG.debug("Flow removed event on SMAC flow entry. But having port Tag as 0 ");
  94                 return;
  95             }
  96             Optional<IfIndexInterface> existingInterfaceInfo = elanUtils.getInterfaceInfoByInterfaceTag(portTag);
  97             if (!existingInterfaceInfo.isPresent()) {
  98                 LOG.debug("Interface is not available for port Tag {}", portTag);
  99                 return;
 100             }
 101             String interfaceName = existingInterfaceInfo.get().getInterfaceName();
 102             PhysAddress physAddress = new PhysAddress(srcMacAddress);
 103             if (interfaceName == null) {
 104                 LOG.error("LPort record not found for tag {}", portTag);
 105                 return;
 106             }
 107             jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName), () -> {
 108                 List<ListenableFuture<Void>> elanFutures = new ArrayList<>();
 109                 MacEntry macEntry = elanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
 110                 InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
 111                 String elanInstanceName = elanTagInfo.getName();
 112                 LOG.info("Deleting the Mac-Entry:{} present on ElanInstance:{}", macEntry, elanInstanceName);
 113                 if (macEntry != null && interfaceInfo != null) {
 114                     ListenableFuture<Void> result = txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 115                         tx -> elanUtils.deleteMacFlows(elanInstanceCache.get(elanInstanceName).orNull(),
 116                                 interfaceInfo, macEntry, tx));
 117                     elanFutures.add(result);
 118                     addCallBack(result, srcMacAddress);
 119                 }
 120                 InstanceIdentifier<MacEntry> macEntryIdForElanInterface = ElanUtils
 121                         .getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
 122                 Optional<MacEntry> existingInterfaceMacEntry = ElanUtils.read(broker,
 123                         LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 124                 if (existingInterfaceMacEntry.isPresent()) {
 125                     ListenableFuture<Void> future = txRunner.callWithNewWriteOnlyTransactionAndSubmit(OPERATIONAL,
 126                         tx -> {
 127                             tx.delete(macEntryIdForElanInterface);
 128                             MacEntry macEntryInElanInstance = elanUtils.getMacEntryForElanInstance(elanInstanceName,
 129                                 physAddress).orNull();
 130                             if (macEntryInElanInstance != null
 131                                 && macEntryInElanInstance.getInterface().equals(interfaceName)) {
 132                                 InstanceIdentifier<MacEntry> macEntryIdForElanInstance = ElanUtils
 133                                     .getMacEntryOperationalDataPath(elanInstanceName, physAddress);
 134                                 tx.delete(macEntryIdForElanInstance);
 135                             }
 136                         });
 137                     elanFutures.add(future);
 138                     addCallBack(future, srcMacAddress);
 139                 }
 140                 return elanFutures;
 141             }, ElanConstants.JOB_MAX_RETRIES);
 142         }
 143     }
 144
 145     private void addCallBack(ListenableFuture<Void> writeResult, String srcMacAddress) {
 146         //WRITE Callback
 147         Futures.addCallback(writeResult, new FutureCallback<Void>() {
 148             @Override
 149             public void onSuccess(Void noarg) {
 150                 LOG.debug("Successfully removed macEntry {} from Operational Datastore", srcMacAddress);
 151             }
 152
 153             @Override
 154             public void onFailure(Throwable error) {
 155                 LOG.debug("Error {} while removing macEntry {} from Operational Datastore", error, srcMacAddress);
 156             }
 157         });
 158     }
 159
 160     @Override
 161     public void onFlowUpdated(FlowUpdated arg0) {
 162         // TODO Auto-generated method stub
 163     }
 164
 165     @Override
 166     public void onNodeErrorNotification(NodeErrorNotification arg0) {
 167         // TODO Auto-generated method stub
 168
 169     }
 170
 171     @Override
 172     public void onNodeExperimenterErrorNotification(NodeExperimenterErrorNotification arg0) {
 173         // TODO Auto-generated method stub
 174
 175     }
 176
 177     @Override
 178     public void onSwitchFlowRemoved(SwitchFlowRemoved switchFlowRemoved) {
 179
 180     }
 181
 182
 183 }